9913038730 has 32 divisors (see below), whose sum is σ = 20409387264. Its totient is φ = 3395947776.

The previous prime is 9913038727. The next prime is 9913038731. The reversal of 9913038730 is 378303199.

It is not an unprimeable number, because it can be changed into a prime (9913038731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27714 + ... + 143506.

It is an arithmetic number, because the mean of its divisors is an integer number (637793352).

Almost surely, 2^9913038730 is an apocalyptic number.

9913038730 is an abundant number, since it is smaller than the sum of its proper divisors (10496348534).

9913038730 is a wasteful number, since it uses less digits than its factorization.

9913038730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117030.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 9913038730 is about 99564.2442345644. The cubic root of 9913038730 is about 2148.1714201711.

The spelling of 9913038730 in words is "nine billion, nine hundred thirteen million, thirty-eight thousand, seven hundred thirty".